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Flex Glue, 9 oz Cartridge, Clear, Super Strong, Transparent, Rubberized Waterproof Adhesive, Works Underwater, Use on Pools, Showers, Outdoors, Concrete, Brick, Pavers, Masonry, UV Resistant

Brand: FLEX GLUE

4.2 3,056 ratings

$15.99 with 43 percent savings

List Price: $27.99

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Purchase options and add-ons

Color	Clear
Brand	FLEX GLUE
Liquid Volume	9 Fluid Ounces
Item Form	Paste
Water Resistance Level	Waterproof

About this item

PRO Formula Caulk Gun Cartridge (Requires caulk gun)
Crystal Clear Super Strong Adhesive
UV Resistant
Waterproof and Works Underwater
Solvent Free and VOC Compliant

Additional Details

Small Business

This product is from a small business brand. Support small.

Customer ratings by feature

Water resistance

4.2

Easy to use

3.1

Value for money

3.1

Adhesion

3.1

See all reviews

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Flex Glue, 9 oz Cartridge, Clear, Super Strong, Transparent, Rubberized Waterproof Adhesive, Works Underwater, Use on Pools,

$15.99

Get it May 6 - 8

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Flex Glue, Mini, Clear, Super Strong, Transparent, Rubberized Waterproof Adhesive, Works Underwater, Use on Pools, Showers, O

$5.98

Get it as soon as Tuesday, May 7

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Product Description

Flex Glue, the super strong rubberized adhesive.

Group shot of Flex Glue all colors and sizes.

Available in White & Crystal Clear.

Flex Glue is an easy to use, super strong, waterproof adhesive with amazing instant grab and hold. Specially formulated to work on all types of surfaces and can be applied on dry or wet surfaces, even underwater! Solvent-free, paintable, and no run and drip so it can be applied overhead.

Flex Glue, waterproof glue, instant grab glue, asotv glue

Excellent for: Home & Garden, Automotive & Marine, Boats, RV's & Trailers, Maintenance Repairs, Construction, Plumbing & Electrical, DIY Projects & Hobbies and So Much More!

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Product information

Color

Clear

Brand

FLEX GLUE

Liquid Volume

9 Fluid Ounces

Item Form

Paste

Water Resistance Level

Waterproof

Material

Bamboo

Product Dimensions

2 x 2 x 11 inches

Item Weight

0.317 ounces

Department

Unisex-Adult

Manufacturer

SWIFT RESPONSE LLC

ASIN

B07VRV9Y2N

Item model number

GFSCLRR09

Customer Reviews

4.2 3,056 ratings

4.2 out of 5 stars

Best Sellers Rank

#35,817 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
#404 in Cyanoacrylate Adhesives

Date First Available

July 25, 2019

Warranty & Support

Product Warranty: For warranty information about this product, please click here

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Safety Information (PDF)

WARNING: California’s Proposition 65

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	This Item FLEX GLUE Flex Glue, 9 oz Cartridge, Clear, Super Strong, Transparent, Rubberized Waterproof Adhesive, Works Underwater, Use on Pools, Showers, Outdoors, Concrete, Brick, Pavers, Masonry, UV Resistant	Recommendations Flex Paste , 9 oz Cartridge, White, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs	dummy Flex Shot , 8 oz, Black, Flexible Rubber Silicone Sealant, Waterproof Caulk, UV Resistant, No Caulk Gun Needed, Perfect for Kitchen, Bath, Showers, Sinks, Baseboards	dummy Flex Paste , 9 oz Cartridge, Black, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs	dummy Gorilla 8060002 White 100% Silicone Sealant, 10 oz, 1-Pack
	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart
Price	-43% $15.99 List: $27.99	$14.87	-28% $17.97 List: $24.99	-32% $14.86 List: $21.99	-10% $9.84 List: $10.99
Delivery	Get it May 6 - 8	Get it as soon as Tuesday, May 7	Get it as soon as Thursday, May 9	—	Get it as soon as Tuesday, May 7
Customer Ratings	4.23,056	4.4573	4.41,017	4.4573	4.517,069
Water resistance	4.2	4.6	5.0	4.6	4.1
Easy to use	3.1	3.7	4.2	3.7	3.6
Adhesion	3.1	4.3	4.4	4.3	4.1
Value for money	3.1	3.7	—	3.7	4.4
Sheerness	—	4.6	—	4.6	3.5
Sold By	SmartSaveUSA	Amazon.com	Jamlyn-Supply	Amazon.com	Amazon.com
form	Paste	Paste	—	Paste	Strip
surface suggestion	—	Windows,Doors	Showers,Sinks	Windows,Doors	Door,Gutters,Window
liquid volume	9 fluid ounces	9 fluid ounces	8 fluid ounces	9 fluid ounces	10 fluid ounces
water resistance	waterproof	waterproof	waterproof	waterproof	waterproof
weight	—	9 ounces	8 ounces	9 ounces	10 ounces

Important information

Ingredients

Contains (trimethoxysilylpropyl) ethylenediamine.

Customer reviews

4.2 out of 5

3,056 global ratings

How customer reviews and ratings work

Customers say

Customers have negative opinions about the adhesion of the caulk. They say it does not adhere well, and the glue is stiff and does not hold anything. Customers also disagree on performance, value, ease of use, durability, seal, and strength.

AI-generated from the text of customer reviews

60 customers mention24 positive36 negative

Customers are mixed about the performance of the caulk. Some mention that it does its job well, is easy to work with, and cleans up easily. However, others say that it doesn't work as advertised, was dried out, and not usable on arrival. Some customers also mention that the glue didn't meet their expectations and didn''t stop water from coming in.

"the glue did not meet my expectations the way I thought it would" Read more

"I used this on my RV roof vent pipes, Worked great." Read more

"...Does not seem to perform as advertised." Read more

"It’s a little pricey on amazon but it’s does it’s job well! This is our go to brand for all caulking needs...." Read more

41 customers mention15 positive26 negative

Customers have mixed opinions about the value of the caulk. Some say it's the best product on the market and worth the cost, while others say it was a total waste of money, with a broken nozzle.

"...Too much waste, too hard to apply, too questionable as an adhesive. Does not seem to perform as advertised." Read more

"...Amazing product." Read more

"Disappointing. Very hard to use and doesn’t lend itself to molding smoothly" Read more

"...However, to honestly rate it I can only go by what I was sent, and it is horrible!..." Read more

38 customers mention14 positive24 negative

Customers are mixed about the ease of use of the caulks. Some mention that it's easy to use and apply, and goes on smoothly. However, others say that it requires a gun, is difficult to apply and use, and is difficult work with. Some customers also mention that the whole tube was hard and they couldn't use it.

"...Too much waste, too hard to apply, too questionable as an adhesive. Does not seem to perform as advertised." Read more

"This was easy to apply, didn’t have a strong odor, and set very quickly. I used it in my bathroom but I’m buying another one for the kitchen...." Read more

"...gel like, I have no doubt that it will seal well, however it is extremely hardto get out of a hand caulk gun...." Read more

"...Almost broke my hand and arm getting the mixture out. Needs more detailed instructions for ease." Read more

25 customers mention13 positive12 negative

Customers are mixed about the durability of the caulk. Some mention that it's easy to use and strong, while others say that it came out opaque and solid. Some say that the product is weak and didn't work when wet.

"Real handy, lots of strength!" Read more

"...After 4 years of wear and tear and MO winters it cracked about 54 inches. Since Lily Pads are over $500.00 we decided to try the Flex glue clear...." Read more

"Well I like the product. It is crystal clear, very thick, gel like, I have no doubt that it will seal well, however it is extremely hard..." Read more

"...It came out opaque and solid, so I suspect I got an old product.Will never buy any of their products again." Read more

17 customers mention9 positive8 negative

Customers are mixed about the strength of the caulk. Some mention that it holds firmly, while others say that it doesn't hold the way it is described.

"...A COMPLETE VIDEO IS FORTHCOMING SO DO NOT MISS OUT! THIS PRODUCT CAN HOLD WEIGHT AND I MEAN VERTICALLY!..." Read more

"used to reattach pool tile but after a couple of weeks they fell off." Read more

"...it does what it says so measure twice & glue once cause this glue is STRONG & PERMANENT...." Read more

"...instructions held onto it as long as I could and no it does not hold the way it is described. I do not recommend the product at all...." Read more

16 customers mention11 positive5 negative

Customers are mixed about the seal. Some mention it goes on smoothly and seals very well, while others say it's difficult to work with and failed to achieve the seal they needed. The nozzle screws off and there is no way to seal a tube once it is opened.

"...Along with gluing the plexiglass in place, it also sealed it tight...." Read more

"...It is crystal clear, very thick, gel like, I have no doubt that it will seal well, however it is extremely hardto get out of a hand caulk gun...." Read more

"...Although the nozzle screws off, there is no way to seal a tube once it is opened, other than squeeze enough into the nozzle that a plug will cure..." Read more

"...The Sealant was excellent, taking Grip to the Masonry Wall immediately.Thanks Flex Seal!" Read more

46 customers mention13 positive33 negative

Customers have negative opinions about the adhesion of the caulk. They mention that the glue would not come out, the cauking gun could not force it out, and the glue is stiff and doesn't hold anything. Some customers also report that the adhesive was completely dried out and difficult to squirt from the tube. Overall, some customers feel that the product is not suitable for their needs.

"...The glue would not flow out of the pump gun. I did finally get a small glop that I picked off with my fingers and stuck to the rock surface...." Read more

"...Again, the goo would not stick to the blocks and I had to fight to get it out of the tube and spread it on the block...." Read more

"...This adhesive works instantly and the lights haven’t moved a bit. You can see the lights going across the top step in the picture of this review." Read more

"...print on the label of the product itself and it said "May not bond to acrylic or plastic". I'm giving it a try...." Read more

Reviews with images

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I'm trapped in Florida

When all else failed

Reviewed in the United States on October 3, 2023

Verified Purchase

Now listen if it's anything pressurized like a hose or pipe don't bother that not what this is for you're gonna have to replace the whole thing if that's the case, gotta have it dry and not leaking water to seal, I live in Florida so if you're lower class land lords just never repair their houses so I took it into my own hands after 4 leaks in a house I've rented for 15 years this was my only option and damn it works, metal roof had leaks started where no leak was so it couldn't escape then applied to the bad holes and so far not one leak, even if it's a small drip I just smothered this wit it and after 20 mins it was dry 👌👌👌

2 people found this helpful

Helpful

Zeke

Good stuff.

Reviewed in the United States on December 26, 2023

Verified Purchase

I used this on my RV roof vent pipes, Worked great.

Helpful

Jonathan M.

the way it works as seen tv is not exactly right

Reviewed in the United States on October 24, 2019

Verified Purchase

the glue did not meet my expectations the way I thought it would

Helpful

Quantaya Daniels

Lives up to the hype

Reviewed in the United States on October 7, 2023

Verified Purchase

This was easy to apply, didn’t have a strong odor, and set very quickly. I used it in my bathroom but I’m buying another one for the kitchen. Amazing product.

Helpful

Cornerstone

STONE WALL REVAMP-STAGE 2

Reviewed in the United States on October 18, 2020

Verified Purchase

I AM FINISHING UP THE REFACING OF A 14 FOOT LONG SEGMENT OF A CINDER BLOCK WALL THE PREVIOUS HOMEOWNER CEMENTED VERY HEAVY AND VARIOUS SIZES OF ACTUAL CUT-ROCK FACING TO. THE ENTIRE WALL HAS COME DOWN FROM 6 FEET HEIGHT WITH EXCEPTION OF THOSE INITIAL REPAIRS MADE WITH THE "PRO FORMULA" 2+3 YEARS AGO! WHEN I STARTED THE WALL OVER I PREPPED THOROUGHLY AND MADE A VIDEO AT ABOUT 50%.I PLAN TO DEMONSTRATE THE FINISHED RESULTS AFTER EIGHT TUBES, PERHAPS MORE. IT IS WORTH EVERY PENNY AS I KNOW THIS IS THE LAST TIME I WILL EVER SEE A ROCK FALLEN AND A FEW HUNDRED SPENT IS FAR SUPERIOR TO THOUSANDS IN ESTIMATED WORK COST! A COMPLETE VIDEO IS FORTHCOMING SO DO NOT MISS OUT! THIS PRODUCT CAN HOLD WEIGHT AND I MEAN VERTICALLY!
THIS WALL HAS SINCE BEEN STRIPPED AND REPAIRED OVER AFTER PREPPING THE SURFACE CLEAN. I AM NOW 12 LARGE TUBES INTO THIS AND PURCHASING A FEW MORE TO FINISH UP IN NEXT FEW DAYS. THE WALL YOU SEE WRAPS AROUND THE SIDE GOING ANOTHER 26 FEET UP THE SIDEWALK AND I PLAN TO INSPECT EACH ROCK BY MALLOT TO REPAIR THE ENTIRE FRONT ENTRANCE STRUCTURE!

5 people found this helpful

Helpful

Gary

Dried out, unusable

Reviewed in the United States on August 1, 2021

Verified Purchase

I bought this to repair a waterfall; to glue some rocks so it was a one-shot deal once I got everything assembled. I don't know what the shelf life of this stuff is but what was sent would not flow out of the pump gun. After cutting the tip I used a nail to puncture the seal. It would not go through so I used a hammer to drive the nail through the seal. The glue would not flow out of the pump gun. I did finally get a small glop that I picked off with my fingers and stuck to the rock surface. Actually it was so dried up it didn't stick, not to my fingers or the rock. I was committed to the project by then and I had to cut open the side and scoop the glue out with a putty knife and applied. But it was so dried up that I have no idea if it adhered to the surface of the rocks, gravity may be holding them in place. I suspect the merchant had this on their shelf for about 20 years. I think this is a merchant issue and not a product issue, I've read to many good reviews. If you are going to buy any Flex Seal product I encourage you to go to the local hardware.

One person found this helpful

Helpful

Gabby_Jim_41

Needs Improvement

Reviewed in the United States on April 14, 2020

Verified Purchase

Perhaps it was shelf life, or maybe that's the way it comes - Bought two calking tubes of this heavily advertised product. When I cut the first tube open the consistency was that of nearly cured caulking, gooey but stiff and hard to spread. I was using it to secure a light fixture to the stone wall of an outbuilding. Mostly it just formed a blob of goo and wouldn't adhere to the rock OR the metal box. I used a very large glob on the back of the box and then wedged it in place overnight because it wouldn't 'stick'. A few weeks later it seems to be doing the job. Later I used the left-over goo to lock two cinder blocks together as part of a pier under a mobile home. Again, the goo would not stick to the blocks and I had to fight to get it out of the tube and spread it on the block. When weight was placed on top of the top block, the goo seemed to squeeze out as expected. but I don't have much confidence in it as an adhesive. I do, however, think it will act like a rubber pad between the bricks, to keep them from sliding apart. Although the nozzle screws off, there is no way to seal a tube once it is opened, other than squeeze enough into the nozzle that a plug will cure in the opening. I may buy one of the smaller tubes as a test, but, unless the second tube performs better when I open it, I will never buy another caulking tube size again. Too much waste, too hard to apply, too questionable as an adhesive. Does not seem to perform as advertised.

22 people found this helpful

Helpful

Touch

Works

Reviewed in the United States on January 4, 2024

Verified Purchase

Does the job

Helpful

Top reviews from other countries

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Darinka

Producto bueno

Reviewed in Mexico on September 15, 2022

Verified Purchase

En general venia todo en orden y el producto funcionó bien

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Araceli González

Muy bueno

Reviewed in Mexico on July 13, 2021

Verified Purchase

Lo usé en mi cubo de luz da la casa que con el paso del tiempo el silicón para evitar filtración se desgasto y esto me ayudó para que no se filtrara la lluvia. Muy bueno

One person found this helpful

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mario

BUENO A MEDIAS

Reviewed in Mexico on July 27, 2022

Verified Purchase

BUEN PRODUCTO A MEDIAS, NO CUMPLE AL 100% CON LO ESPECIFICADO

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marcelino larraga salinas

Muy buen producto

Reviewed in Mexico on December 2, 2021

Verified Purchase

Fácil de usar

One person found this helpful

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Flex Glue, 9 oz Cartridge, Clear, Super Strong, Transparent, Rubberized Waterproof Adhesive, Works Underwater, Use on Pools, Showers, Outdoors, Concrete, Brick, Pavers, Masonry, UV Resistant

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Available in White & Crystal Clear.

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Flex Glue, 9 oz Cartridge, Clear, Super Strong, Transparent, Rubberized Waterproof Adhesive, Works Underwater, Use on Pools, Showers, Outdoors, Concrete, Brick, Pavers, Masonry, UV Resistant

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About this item

Additional Details

Customer ratings by feature

Frequently bought together

Similar items in new arrivals

Product Description

Available in White & Crystal Clear.

Looking for specific info?

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Warranty & Support

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